Question: What is the galaxy cluster with the lowest flux whose constellation is Virgo ?
Paraphrase: What is the universe cluster with the least flux whose star grouping is Virgo ?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q204107 . ?ent wdt:P2221 ?obj . ?ent wdt:P59 wd:Q8842} ORDER BY ASC(?obj)LIMIT 5 
Answer: Abell 1689